The international economy / P. T. Ellsworth, J. Clark Leith. Ellsworth, P. T. (Paul Theodore), 1897- Leith, J. Clark, joint author. International trade. International economic relations. HF1007 .E478 1975 330 19 ELI Includes bibliographies and index. New York : Macmillan, 1969. 1969. 1969 Text viii, 594 p. ; eng